140 lines
3.3 KiB
C++
140 lines
3.3 KiB
C++
// 8.大气渲染
|
||
// 画一个球，纯粹使用shader计算出颜色
|
||
|
||
#include"VulkanAppFramework.h"
|
||
#include<hgl/filesystem/FileSystem.h>
|
||
#include<hgl/graph/InlineGeometry.h>
|
||
#include<hgl/graph/VKRenderResource.h>
|
||
#include<hgl/graph/Mesh.h>
|
||
#include<hgl/graph/RenderList.h>
|
||
|
||
using namespace hgl;
|
||
using namespace hgl::graph;
|
||
|
||
constexpr uint32_t SCREEN_WIDTH=512;
|
||
constexpr uint32_t SCREEN_HEIGHT=512;
|
||
|
||
struct AtmosphereData
|
||
{
|
||
Vector3f position;
|
||
float intensity;
|
||
float scattering_direction;
|
||
|
||
public:
|
||
|
||
AtmosphereData()
|
||
{
|
||
position=Vector3f(0,0.1f,-1.0f);
|
||
intensity=22.0f;
|
||
scattering_direction=0.758f;
|
||
}
|
||
};//struct AtmosphereData
|
||
|
||
class TestApp:public CameraAppFramework
|
||
{
|
||
private:
|
||
|
||
SceneNode render_root;
|
||
RenderList * render_list=nullptr;
|
||
|
||
MaterialInstance * material_instance =nullptr;
|
||
Pipeline * pipeline_solid =nullptr;
|
||
|
||
DeviceBuffer * ubo_atomsphere =nullptr;
|
||
AtmosphereData atomsphere_data;
|
||
|
||
Primitive * ro_sphere =nullptr;
|
||
|
||
private:
|
||
|
||
bool InitMaterial()
|
||
{
|
||
material_instance=db->CreateMaterialInstance(OS_TEXT("res/material/Atmosphere")); //不需要优先创建Material，也不需要写扩展名
|
||
if(!material_instance)return(false);
|
||
|
||
// pipeline_solid=db->CreatePipeline(material_instance,sc_render_target,OS_TEXT("res/pipeline/sky"));
|
||
pipeline_solid=CreatePipeline(material_instance,InlinePipeline::Sky,Prim::Triangles); //等同上一行，为Framework重载，默认使用swapchain的render target
|
||
if(!pipeline_solid)return(false);
|
||
|
||
return(true);
|
||
}
|
||
|
||
bool InitUBO()
|
||
{
|
||
ubo_atomsphere=db->CreateUBO(sizeof(AtmosphereData),&atomsphere_data);
|
||
|
||
if(!ubo_atomsphere)
|
||
return(false);
|
||
|
||
{
|
||
MaterialParameters *mp=material_instance->GetMP(DescriptorSetType::Value);
|
||
|
||
if(!mp)return(false);
|
||
|
||
if(!mp->BindUBO("sun",ubo_atomsphere))
|
||
return(false);
|
||
|
||
mp->Update();
|
||
}
|
||
return(true);
|
||
}
|
||
|
||
bool InitScene()
|
||
{
|
||
ro_sphere=inline_geometry::CreateSphere(db,material_instance->GetVIL(),128);
|
||
|
||
render_root.CreateSubNode(scale(100),db->CreateRenderable(ro_sphere,material_instance,pipeline_solid));
|
||
|
||
render_root.RefreshMatrix();
|
||
render_list->Expend(GetCameraInfo(),&render_root);
|
||
|
||
return(true);
|
||
}
|
||
|
||
public:
|
||
|
||
~TestApp()
|
||
{
|
||
SAFE_CLEAR(render_list);
|
||
}
|
||
|
||
bool Init()
|
||
{
|
||
if(!CameraAppFramework::Init(SCREEN_WIDTH,SCREEN_HEIGHT))
|
||
return(false);
|
||
|
||
render_list=new RenderList(device);
|
||
|
||
if(!InitMaterial())
|
||
return(false);
|
||
|
||
if(!InitUBO())
|
||
return(false);
|
||
|
||
if(!InitScene())
|
||
return(false);
|
||
|
||
return(true);
|
||
}
|
||
|
||
void BuildCommandBuffer(uint32_t index) override
|
||
{
|
||
render_root.RefreshMatrix();
|
||
render_list->Expend(GetCameraInfo(),&render_root);
|
||
|
||
VulkanApplicationFramework::BuildCommandBuffer(index,render_list);
|
||
}
|
||
};//class TestApp:public CameraAppFramework
|
||
|
||
int main(int,char **)
|
||
{
|
||
TestApp app;
|
||
|
||
if(!app.Init())
|
||
return(-1);
|
||
|
||
while(app.Run());
|
||
|
||
return 0;
|
||
}
|